1211030283023 has 4 divisors (see below), whose sum is σ = 1321123945128. Its totient is φ = 1100936620920.

The previous prime is 1211030283019. The next prime is 1211030283037. The reversal of 1211030283023 is 3203820301121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1211030283023 - 2² = 1211030283019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1211030282983 and 1211030283001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211030283053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55046831036 + ... + 55046831057.

It is an arithmetic number, because the mean of its divisors is an integer number (330280986282).

Almost surely, 2^{1211030283023} is an apocalyptic number.

1211030283023 is a deficient number, since it is larger than the sum of its proper divisors (110093662105).

1211030283023 is a wasteful number, since it uses less digits than its factorization.

1211030283023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110093662104.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 1211030283023 its reverse (3203820301121), we get a palindrome (4414850584144).

The spelling of 1211030283023 in words is "one trillion, two hundred eleven billion, thirty million, two hundred eighty-three thousand, twenty-three".